Results 81 to 90 of about 33,062 (329)

The paleobiology and paleoecology of South African Lystrosaurus

PeerJ, 2020
Lystrosaurus was one of the few tetrapods to survive the end-Permian mass extinction (EPME), the most catastrophic biotic crisis in Phanerozoic history. The significant increased abundance of this genus during the post-extinction Early Triassic recovery ...
J. Botha
semanticscholar   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

The Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

Making the most of clade selection [PDF]

, 2017
Clade selection is unpopular with philosophers who otherwise accept multilevel selection theory. Clades cannot reproduce, and reproduction is widely thought necessary for evolution by natural selection, especially of complex adaptations.
Doolittle, W. Ford
core   +1 more source

Subdaily‐Scale Chemical Variability in a Torreites Sanchezi Rudist Shell: Implications for Rudist Paleobiology and the Cretaceous Day‐Night Cycle

Paleoceanography and Paleoclimatology, 2020
This study presents subdaily resolved chemical records through fossil mollusk shell calcite. Trace element profiles resolve periodic variability across ~40‐μm‐thin daily growth laminae in a Campanian Torreites sanchezi rudist bivalve.
N. Winter, S. Goderis, Stijn J. M. Van Malderen, M. Sinnesael, S. Vansteenberge, C. Snoeck, J. Belza, F. Vanhaecke, P. Claeys   +8 more
semanticscholar   +1 more source

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

The Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox, Kenneth D. Rose, Rachel H. Dunn, Kishor Kumar, Rajendra S. Rana, Ashok Sahni, Lachham Singh, Thierry Smith, Jordan W. Crowell   +8 more
wiley   +1 more source

Sea surface temperature contributes to marine crocodylomorph evolution [PDF]

, 2014
During the Mesozoic and Cenozoic, four distinct crocodylomorph lineages colonized the marine environment. They were conspicuously absent from high latitudes, which in the Mesozoic were occupied by warm-blooded ichthyosaurs and plesiosaurs.
Amiot, Romain, Benton, Michael J, Lécuyer, Christophe, Martin, Jeremy E   +3 more
core   +3 more sources

Exploring the cranial morphology and possible convergences of Triassic non‐crocodylomorph pseudosuchians (Archosauria: Pseudosuchia) with other sauropsids through linear morphometrics

The Anatomical Record, EarlyView.
Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras, Rodrigo Temp Müller, Leonardo Kerber, Mirian Carbonera   +3 more
wiley   +1 more source

Hierarchy Theory of Evolution and the Extended Evolutionary Synthesis: Some Epistemic Bridges, Some Conceptual Rifts [PDF]

, 2018
Contemporary evolutionary biology comprises a plural landscape of multiple co-existent conceptual frameworks and strenuous voices that disagree on the nature and scope of evolutionary theory.
A Etxeberria, A Fuentes, A Parravicini, A Vianello, A Wagner, AC Love, Alejandro Fábregas-Tejeda, AV Badyaev, B Bocxlaer Van, BS Lieberman, BS Lieberman, D Noble, D Sepkoski, D Sloan-Wilson, DD Turner, DJ Depew, DJ Futuyma, DJ Nicholson, DL Hull, DM Walsh, DR Piperno, DT Campbell, E Danchin, E Jablonka, E Jablonka, E Jablonka, E Mayr, E Mayr, E Serrelli, E Szathmáry, EI Svensson, ES Vrba, ES Vrba, ES Vrba, F Suman, F Vergara-Silva, FJ Odling-Smee, FJ Odling-Smee, Francisco Vergara-Silva, GB Müller, GB Müller, GG Simpson, GJ Cooper, GP Wagner, GP Wagner, I Tëmkin, I Tëmkin, I Tëmkin, J Beatty, J Griesemer, J Griesemer, J Odling-Smee, J Odling-Smee, JJ Welch, JW Pepper, K Laland, K Laland, K Stotz, KN Laland, KN Laland, KN Laland, KN Laland, M Bertolaso, M Blute, M Lynch, M Martínez, M Nei, M Pavličev, M Pigliucci, M Pigliucci, MD Laubichler, MJ Denton, MW Kirschner, N Eldredge, N Eldredge, N Eldredge, N Eldredge, N Eldredge, N Eldredge, N Eldredge, N Eldredge, P Alberch, P Bateson, P Godfrey-Smith, PJ Bowler, R Amundson, R Amundson, R Riedl, R Sansom, RG Delisle, RG Winther, S Caianiello, S Okasha, S Okasha, S Oyama, S Sultan, SF Gilbert, SJ Gould, SJ Gould, T Ingold, T Ingold, T Pievani, T Pievani, T Pievani, T Pievani, TA Grantham, TS Kemp, TS Kemp, U Dieckmann, W Miller III, W Miller III, WB Provine, WD Allmon, WE Reif   +113 more
core   +1 more source

New Records of Panthera gombaszoegensis (Kretzoi, 1938) from Europe

Quaternary
New postcranial material of Panthera gombaszoegensis, a large pantherine felid, is analyzed from the English site of Corton (early Middle Pleistocene, possibly 0.7–0.6 mya) and the Polish site of Rogóżka Cave (0.45–0.35 mya).
Adrian Marciszak, Alfie Bower
doaj   +1 more source

Macraucheniidae y Proterotheriidae (Mammalia, Litopterna) de Quebrada Fiera (Oligoceno tardío), Mendoza, Argentina [PDF]

, 2019
In this contribution we present new specimens of Litopterna recovered during the last decade in Quebrada Fiera (Mendoza Province, Argentina), whose fossiliferous sediments, currently recognized as the base of Agua de la Piedra Formation, are assignable ...
Cerdeño Serrano, Maria Esperanza, Hernández del Pino, Santiago Ezequiel, Schmidt, Gabriela Ines   +2 more
core   +1 more source